Publicaciones

• Article dans une revue

Contribution of the buffer layer to the Raman spectrum of epitaxial graphene on SiC(0001)

F. Fromm, M.H. Oliveira, A. Molina-Sanchez, M. Hundhausen, J.M.J. Lopes, H. Riechert, L. Wirtz, T. Seyller

We report a Raman study of the so-called buffer layer with (6√3 × 6√3)R30◦ periodicity which forms the intrinsic interface structure between epitaxial graphene and SiC(0001). We show that this interface structure leads to a nonvanishing signal in the Raman spectrum at frequencies in the range of...

New Journal of Physics, 2013, 15, pp.043031-1-11. ⟨10.1088/1367-2630/15/4/043031⟩. ⟨hal-00823434⟩

• Article dans une revue

Highly efficient terahertz detection by optical mixing in a GaAs photoconductor

Emilien Peytavit, F. Pavanello, Guillaume Ducournau, Jean-Francois Lampin

Applied Physics Letters, 2013, 103, 201107, 4 p. ⟨10.1063/1.4830360⟩. ⟨hal-00903765⟩

• Article dans une revue

Terahertz detection in zero-bias InAs self-switching diodes at room temperature

A. Westlund, P. Sangare, Guillaume Ducournau, P.A. Nilsson, Christophe Gaquière, L. Desplanque, X. Wallart, J. Grahn

Applied Physics Letters, 2013, 103, pp.133504-1-4. ⟨10.1063/1.4821949⟩. ⟨hal-00872026⟩

• Article dans une revue

Band offsets at zincblende-wurtzite GaAs nanowire sidewall surfaces

Pierre Capiod, Tao Xu, Jean-Philippe Nys, Maxime Berthe, Gilles Patriarche, Liverios Lymperakis, J. Neugebauer, Philippe Caroff, Rafal E Dunin-Borkowski, Philipp Ebert, B. Grandidier

Applied Physics Letters, 2013, 103, pp.122104-1-4. ⟨10.1063/1.4821293⟩. ⟨hal-00871957⟩

• Article dans une revue

High quality factor mg-scale silicon mechanical resonators for 3-mode optoacoustic parametric amplifiers

F.A. Torres, P. Meng, L. Ju, C. Zhao, D.G. Blair, K.-Y. Liu, S. Chao, M. Martyniuk, Isabelle Roch-Jeune, R. Flaminio, C. Michel

Milligram-scale resonators have been shown to be suitable for the creation of 3-mode optoacoustic parametric amplifiers, based on a phenomena first predicted for advanced gravitational-wave detectors. To achieve practical optoacoustic parametric devices, high quality factor resonators are required...

Journal of Applied Physics, 2013, 114, pp.014506. ⟨10.1063/1.4812731⟩. ⟨in2p3-00859697⟩

• Article dans une revue

Epitaxy of MgO magnetic tunnel barriers on epitaxial graphene

Florian Godel, Emmanuelle Pichonat, Dominique Vignaud, Hicham Majjad, Dominik Metten, Yves Henry, Stéphane Berciaud, Jean-Francois Dayen, David Halley

Nanotechnology, 2013, 24 (47), pp.475708. ⟨10.1088/0957-4484/24/47/475708⟩. ⟨hal-00881293⟩

• Article dans une revue

Improvement of the oxidation interface in an AlGaAs/AlxOy waveguide structure by using a GaAs/AlAs superlattice

J.Y. Song, S. Bouchoule, G. Patriarche, E. Galopin, A.M. Yacomotti, E. Cambril, Q.G. Kou, David Troadec, J.J. He, J.C. Harmand

The wet oxidation from the mesa sidewalls of AlGaAs/GaAs epitaxial structures is investigated in details. In addition to the intended lateral oxidation of the Al-rich buried layer, we observe a parasitic vertical oxidation of the adjacent layers of lower Al content. This vertical oxidation produces...

Physica Status Solidi A (applications and materials science), 2013, 210, pp.1171-1177. ⟨10.1002/pssa.201228770⟩. ⟨hal-00872060⟩

• Article dans une revue

Multiple exciton generation and ultrafast exciton dynamics in HgTe colloidal quantum dots

Ali Al-Otaify, Stephen V. Kershaw, Shuchi Gupta, Andrey L. Rogach, Guy Allan, Christophe Delerue, David J. Binks

The investigation of sub-nanosecond exciton dynamics in HgTe colloidal quantum dots using ultrafast transient absorption spectroscopy is reported. The transmittance change spectrum acquired immediately after pumping is dominated by a bleach blue-shifted by ∼200–300 nm from the photoluminescent...

Physical Chemistry Chemical Physics, 2013, 15, pp.16864-16873. ⟨10.1039/C3CP52574K⟩. ⟨hal-00871970⟩

• Article dans une revue

Dielectric properties by rectangular waveguide

M.D. Belrhiti, S. Bri, A. Nakheli, A. Mamouni

International Journal of Emerging Sciences, 2013, 3, pp.163-171. ⟨hal-00872091⟩

• Article dans une revue

Hypersound damping in vitreous silica measured by ultrafast acoustics

S. Sadtler, Arnaud Devos, M. Foret

International Journal of Thermophysics, 2013, 34, pp.1785-1794. ⟨10.1007/s10765-013-1511-2⟩. ⟨hal-00877635⟩